Charge Only with Designated Keeppower i4/i8 Chargers.
● Quality High Capacity AA 1.5V Rechargeable Li-ion Battery
● Energy: 4300mWh (reference)
● Capacity: 2866mAh (reference)
● Minimum Capacity: 2720mAh
● Voltage: 1.5V (reference)
● Charging Method: CC-CV to 5V
● Standard Charging Current: 240mA (about 300min)
● Rapid Charging Current: 500mA (about 180min)
● Continuous discharge current: 500mA
● Maximum Discharge Current: 2A
● In Built Safety Circuitry
● Protection Circuit (Against over charge, over discharge, over current and short-circuit.)
● 5V maximum voltage and 0.9V cut-off voltage
● Over 500 charge-discharge cycles
● Working Temperature
Charge: 0 to +45° C
Discharge: -20 to +60°C
Storage: -20 to +25°C (more than 1 year)
-20 to +40°C (less than 3 months)
-20 to +50°C (less than 1 month)
The Rechargeable Li-ion Battery P1450I2 by Keeppower offers exceptional performance for a wide range of applications. With a high energy capacity of 4300mWh and 2866mAh capacity, this battery provides long-lasting power for your devices. It is designed for reliable, fast-charging and safe operation, thanks to its advanced protection circuitry that guards against overcharge, over-discharge, and short circuits.

BatteryGuy –
Use it in a professional head-lamp from a major brand. These do not accept regular 1.2V NiMH batteries. The 1.5V is a thing that is for a rechargeable battery rare and sometimes a must! With the larger capacity than regular batteries they last very long. Carging is fast and easy using a easier common USB-C interface. This is a major improvement over the previous micro-USB interface which is getting rare nowadays. Tip: I would like to see the USB-C interface too on the AAA version!!!
a Happy Keeppower user!